Granted Patent
Utility
US 5,203,384 · App. 07/892,625
Combination casting for a blending dispenser
Inventor:
Robert E. Hansen
Patented Case
View Patent ↗
Granted: Apr 20, 1993
Filed: Jun 1, 1992
Inventor
Robert E. Hansen
Assignee (at issue)
Dresser Industries, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.